<template>
  <div class="person">
    <h2>姓名: {{ name }}</h2>
    <h2>姓名: {{ age }}</h2>
    <button @click="changeName">修改名字</button>
    <button @click="changeAge">修改年龄</button>
    <button @click="showTel">查看联系方式</button>
  </div>
</template>

<script setup>
import { ref } from "vue";

let name = ref('张三')
let age = ref(18)
let tel = '13788888888'

function changeName() {
  name.value = 'zhangsan'
}

function changeAge() {
  age.value += 1
}

function showTel() {
  alert(tel)
}
</script>

<style scoped>
.person {
  background: darksalmon;
  box-shadow: 0 0 10px;
  border-radius: 10px;
  padding: 20px;
}
</style>